Performance bounds for multipath-assisted indoor localization on backscatter channels
作者： Erik Leitinger , Paul Meissner , Markus Frohle , Klaus Witrisal
DOI: 10.1109/RADAR.2014.6875557
关键词: Upper and lower bounds 、 Backscatter 、 Cramér–Rao bound 、 Engineering 、 Communication channel 、 Algorithm 、 Cognitive radio 、 Noise (signal processing) 、 Electronic engineering 、 Radar 、 Multipath propagation
摘要: In this paper, we derive the Cramer-Rao lower bound (CRLB) on position error for an RFID tag localization system exploiting multipath backscatter radio channels. The channel is modeled with a hybrid deterministic/stochastic model. way, both geometry of deterministic components (MPCs) and interfering diffuse are taken into account. Computational results show influence room impact multipath. Time reversal (TR) processing uplink analyzed using MPCs to overcome degenerate nature channel. CRLB shows potential gain obtained from TR as well its strong dependence geometry. Such has been proposed TX waveform adaptation in perception-action cycle cognitive radar. paper illustrate that it can indeed beneficially measurement noise received signal, yielding control over system.
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